// Problem: 
// Contest: 
// URL: 
// Memory Limit: 
// Time Limit: 
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("unroll-loops")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#include<bits/stdc++.h>
using namespace std;
#define int long long
inline int read(){
	int s=0,w=1;
	char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')w=-1;ch=getchar();}
	while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
	return s*w;
}
int n,m,k;
bool check(int x,int mk)
{
	int tmp=m%(x+1)+m/(x+1)*x;
	return tmp>=mk;
}
signed main()
{
	int t=1;
	cin>>t;
	while(t--)
	{

		cin>>n>>m>>k;
		int mk;
		if(k%n==0)mk=k/n;
		else mk=k/n+1;
		int l=1,r=m,mid;
		while(l<r)
		{
			mid=(r-l)/2+l;
			if(check(mid,mk))
			{
				r=mid;
			}
			else l=mid+1;
		}
		cout<<l<<endl;
	}
	return 0;
}
